Masternode rewards was decreased, but it's not because total masernodes count is increased. Blockchain riched block 21600 and POS rewards was halved. So SeeSaw mechanism balanced POS and MN.
And about listing on exchanges. If YUP will listed now, this will kill a coin. The price will drop down, because most of current holders will sell coins for a pittance. Firstly we need big real promotion and create professional community.